Closure for receptacles



Jan. 12 1926. I v 1,569,072

" F. C. CLEMENT CLOSURE FOR RECEP'IAGLES Filed April 1, 1925 v WITNESSESINVENTOR:

543 E'ederidfi 0.0m

a iz 3 TTORNEYS.

Patented Jan. 12, 1926.

UNITED STATES FREDERICK C. CLEMENT, OF PHILADELIPHIA, PENNSYLVANIA.

CLOSURE FOR REGEPTACLES.

Application filed April 1, 1925. Serial No. 19,789.

To all whom it may concern:

Be it known that I, FREDERICK C. CLEM- ENT, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Closures for Receptacles, whereof the following is a specification,reference being had to the accompanying drawings.

This invention relates to closures for receptacles such as cans, jars,bottles, decanters, or similar vessels used more particularly for foodsand beverages.

The present invention is directed to improvements in a closure of thetype referred to whereby a yieldingly snug, substantially fluid and airtight fit is had with the receptacle without imposition of excessiverestraint such as would render the removal of the closure 'diflicult ofaccomplishment.

A further object is to secure the above desideratum in a'closure capableof being sterilized, without detriment thereto, for maintenance in anabsolutely sanitary condition.

Other objects and attendant advantages will be manifest from thedetailed description which follows of a typical embodiment of thisinvention.

Vith reference to the dawings, Fig. I shows a beverage receptacle with aclosure conveniently featuring my improvements.

Fig. II is a bottom plan view of the closure on a somewhat larger scalethan that of Fig. I; and

Fig. III is an axial sectional view of the closure.

The receptacle chosen for convenience of illustration herein is in theform of a decanter comprising a flask 10 of glass that isvacuum-jacketed as at 11, and protected by an external casing 12 ofmetal in accordance with customary practice.

In adapting my invention for use in connection with a receptacle of thissort, I provide a stopper 13 which is constructed throughout from sheetmetal. The upper portion or head 14 of this stopper 13 is appropriatelyfashioned to the form of a grasp knob 15 that has a circumferentialbasal flange 16 designed to serve as a cover or cap over the mouth ofthe receptacle as shown in Fig. I. The lower or depending portion 17 ofthe stopper is slightly tapered to facilitate its introduction into themouth of the flask 1.0, and formed to spiral cross however left free, asshown, for a purpose which will presently become apparent. The parts 14,17 of the stop per are secured together by an axially.- disposed headedscrew 21 which is welded or soldered fast to the spiders 18, 19 andtakes into a collar'22 concealed within the grasp knob 15. In addition,I preferably weld on solder the upper spider 18, and the top edge of thespiral 17 (with exception of the end 20) directly to the flat bottomsurface of the head 14.

In applying the stopper to the receptacle, the free end 20 of the spiral17 will yield to compression as the latter is introduced into the mouthof the flask 10, and will thereafter be maintained by virtue of itsspringiness, or in other words, its capacity for circumferentialcontraction, in close snug contact with the flask wall. Under thiscondition, and in view of the protection afforded by the flange 16 ofthe stopper 13, good, reliable air tightness is secured so that theoriginal temperature of the receptacle contents is maintained for themaxi- .mum possible period. The stopper 13 is furthermore eflectivelyheld against easy displacement in the vent of accidental upsetting ofthe receptacle, and the contents thus insured against spilling in such acontingency. The open metallic construction of the stopper 13 rendersits cleaning by sterilization very easy, and obviates the germ-breedinginterstices or pits of cork or rubber closures such as ordinarilyemployed in connection with receptacles of the type herein specificallydescribed.

The application of my invention to closures for containers of any of theother kinds whereto reference has been made in the introductoryparagraph of the specification, will obviously be attended by advantagesanalogous to those just pointed out without requiring further detailedexplanation.

Having thus described my invention, I claim:

1. A closure for receptacles comprising a grasp and a stopper portion,said stopper portion being of taper-spiral cross-section,

and means laterally bracing the spiral stopper portion to the grasp with.theouter end of the former left free to permit circumferentialcontraction whereby the closure is snugly fitted into the receptaclemouth.

2. A closure for receptacles comprising a grasp and a stopper portion,said stopper portion being of taper-spiral cross-section, and meanslaterally bracing the spiral por- .tion in different planes-to the graspwith the outer end of the former left free to permit circumferentialcontraction and expansion,

whereby the closure may be snugly seated into the receptaclemouth.

3. A closure for receptacles comprising a grasp and a stopper portion,said stopper portion being of taper-spiral cross-section, and spacedlateral spiders internally bracingthe spiral stopper to the grasp withthe of said .s'piral stopper left free to permit circumferentialexpansion and contraction, for the purposes specified.

5. A closure of the type described comprising a hollow sheet metal grasphaving a basal fiange functional as the cover for a receptacle and astrip metal stopper portion, said stopper portion being of taper-spiralcross-section, spaced spiders with a rigid axial connection laterallybracing the stopper to the grasp base, and'a substantial portion ofstopper outer end left free for zthe purposes specified.

6. A closure of the type described .comprising a hollow sheet metal Igrasp having a substantially flat base functional as the cover for areceptacle and a strip metal stopper portion,s'aid stopper portion being.oftaper-spiral cross-section, .upper and lower paced spiders having arigid axial connector laterally bracingthe strip spiral to the graspbase with asubstantial portion of its outer endleftfree, said upperspider and the top of the spiral stopper-Avith the exception of the freeouter endbeing permanently united to the aforesaid grasp base.

In testimony whereof, I have hereunto signed my name at Philadelphia,Pennsyl- Vania, this 27th day ofMarch, 1925.

FREDERICK o. CLEMENT.

